FAA Proposes Update to Airworthiness Directive for US Military Helicopters

Summary

The Federal Aviation Administration (FAA) proposes a new airworthiness directive (AD) for certain helicopters manufactured by Bell Helicopter Textron, Inc. for the US Armed Forces. The proposed AD would update the retirement requirements for main rotor components, replacing the current method of tracking flight hours with a new system based on torque events and flight hours. The new directive would also clarify the definition of the mast serial number.